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Fabrication, magnetic, and ferroelectric properties of multiferroic BiFeO3 hollow nanoparticles

Journal Article


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Abstract


  • Hollow BiFeO3 nanoparticles were synthesized by an electrospray route for the first time. The

    phase purity and structure have been investigated by x-ray diffraction and Raman spectroscopy.

    Transmission and scanning electron microscope investigations revealed that the as-obtained

    BiFeO3 hollow spheres were polycrystalline, with a shell thickness of 35 nm. The formation

    mechanism can be possibly explained by Ostwald ripening. Raman spectra have verified decreased

    vibrational frequencies in BiFeO3 nanoparticles. These hollow and core-shell multiferroic

    nanoparticles exhibit significantly enhanced ferromagnetism from 5 to 600 K due to a broken spiral

    spin structure. The ferroelectricity of hollow BiFeO3 particles exhibits a lower switching electric

    field, which is confirmed by Kelvin probe force microscopy.

Publication Date


  • 2011

Citation


  • Du, Y., Cheng, Z., Dou, S. Xue., Attard, D. Jon. & Wang, X. (2011). Fabrication, magnetic, and ferroelectric properties of multiferroic BiFeO3 hollow nanoparticles. Journal of Applied Physics, 109 (7), 073903-1-073903-5.

Scopus Eid


  • 2-s2.0-79955400109

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1490&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/490

Has Global Citation Frequency


Start Page


  • 073903-1

End Page


  • 073903-5

Volume


  • 109

Issue


  • 7

Place Of Publication


  • United States

Abstract


  • Hollow BiFeO3 nanoparticles were synthesized by an electrospray route for the first time. The

    phase purity and structure have been investigated by x-ray diffraction and Raman spectroscopy.

    Transmission and scanning electron microscope investigations revealed that the as-obtained

    BiFeO3 hollow spheres were polycrystalline, with a shell thickness of 35 nm. The formation

    mechanism can be possibly explained by Ostwald ripening. Raman spectra have verified decreased

    vibrational frequencies in BiFeO3 nanoparticles. These hollow and core-shell multiferroic

    nanoparticles exhibit significantly enhanced ferromagnetism from 5 to 600 K due to a broken spiral

    spin structure. The ferroelectricity of hollow BiFeO3 particles exhibits a lower switching electric

    field, which is confirmed by Kelvin probe force microscopy.

Publication Date


  • 2011

Citation


  • Du, Y., Cheng, Z., Dou, S. Xue., Attard, D. Jon. & Wang, X. (2011). Fabrication, magnetic, and ferroelectric properties of multiferroic BiFeO3 hollow nanoparticles. Journal of Applied Physics, 109 (7), 073903-1-073903-5.

Scopus Eid


  • 2-s2.0-79955400109

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1490&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/490

Has Global Citation Frequency


Start Page


  • 073903-1

End Page


  • 073903-5

Volume


  • 109

Issue


  • 7

Place Of Publication


  • United States